Nearly 20,000 rainbow trout were dumped into Summit Lake this month, restocking a resource where, just six months ago, all the fish were poisoned. The 7- to 8-inch fish were stocked under the ice at the lake in Mancos State Park on Colorado 184 about 30 miles west of Durango. The fish came from the Hotchkiss National Fish Hatchery about 20 miles east of Delta. In August, about 40 Division of Wildlife employees sprayed 113 gallons of the poison rotenone and dumped 3,900 pounds of a powdered version into the reservoir, killing all the fish and getting rid of the non-native white sucker that had taken over, making the water murky and difficult for other species to survive. An additional 25,000 catchable rainbow trout will be stocked in coming months, bringing the total to about 45,000. 

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